USPS postage rates offer low-cost mailing and shipping prices for domestic & international customers. See Forever postage stamp prices and other postage rates.

USPS shows you how to send a letter or postcard in the U.S., from choosing an envelope, writing the address, buying and applying stamps, and finding a drop-off location.

Shop our selection of Postcards Cards & Envelopes products on the USPS.com Postal Store

With USPS Marketing Mail, there is a little more flexibility -- there is no separate (lower) price for postcards, so you don't have to worry about your postcard being too big -- because you're …

With Every Door Direct Mail (EDDM), you don't need address lists or stamps for your direct marketing mail and ad campaigns: Just choose demographics and ZIP codes to target routes …

Select from hundreds of designs for any occasion or create your own. Simply upload your photos, add your addresses, and press send. We’ll print, stuff, address, stamp, and mail your cards …

First-Class Mail is a fast, low-cost way to send envelopes and postcards. See First-Class Mail and Forever stamp prices for a letter and postcard.

Send mail that packs a punch with Forever® stamps honoring three-time heavyweight champion, Muhammad Ali. Shop Now

All Acceptance Facilities must use USPS Priority Mail Flat Rate envelopes (EP14F) OR USPS Priority Mail Express Flat Rate envelopes (EP13F) when mailing passport applications to the …

Learn how to use USPS to send letters from the U.S. to other countries: What you can send, how to write addresses, ways to buy postage, and more.